nvidia optimus / gfx driver not detecting gfx

[Zorgan]

I have an Acer 5755 which has switchable graphics card within the laptop.

within the BIOS it is enabled to Switchable (not intergrated only)

I have installed only the Intel integrated graphics card drive fine, but within the device manager there appears only one graphics device.

I have looked through Google search and seen that quite a lot of people have had issues with Optimus technology from nVidia also a lot of driver installation issues or not detecting the GPU.

also if I try to install the nVidia graphics driver it also fails to detect any nVidia product.

This has only happened since a fresh installation of windows 7 on the machine. I think the first step is getting the Hardware ID which I am unable to get as the device manager does not show the device, it's almost like it's disabled elsewhere apart from the BIOS which is baffling.

please note the hard drive previously failed and I had purchased an OEM version of windows 7 so it came with no drivers, so I have had to rely on nvidia website and the acer website for support for drivers, I was hoping to get this sorted this weekend seen as it's the bank holiday weekend, also Acer support seem to be offline till Tuesday.

hope somebody can help.

regards,

Zorg.

 

[Zorgan]

yes definitely mobility driver, problem still not resolved, really strange problem indeed!

attempted the driver specifically for the laptop from the Acer website and direct from the Nvidia website.

both do not see the device, I'm guessing because it can not see it listed within the device manager.